Sept 12 (Reuters) - Buffalo Bills defensive tackle MarcellDareus is expected to be back for Sunday's game against theKansas City Chiefs after grieving with his family this weekfollowing the death of his brother, the team said. Simeon Gilmore, the defensive tackle's younger brother, wasone of three people shot and killed during a burglary in Pelham,Alabama on the weekend. "I spoke to Marcell and all of our condolences do go out tohim and the family," Bills head coach Chan Gailey told reporterson Wednesday. "He's got a lot on his plate to say the least. "I talked to him this morning. ...